using a hot gas for forming a knob on the tuft end

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing brushes
- Patent number 6,582,028
- Issue date Jun 24, 2003
- M+C Schiffer GmbH
- Erwin Buchholz
- A46 - BRUSHWARE
Information Patent Grant
Molding apparatus with a tuft feeder for making a brush
- Patent number 5,728,408
- Issue date Mar 17, 1998
- G.B. Boucherie N.V.
- Bart Gerard Boucherie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Molding machine for injection molding of tooth brushes
- Patent number 5,609,890
- Issue date Mar 11, 1997
- G.B. Boucherie N.V.
- Bart G. Boucherie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Brush making machine
- Patent number 5,533,791
- Issue date Jul 9, 1996
- G.B. Boucherie N.V.
- Bart G. Boucherie
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Brush with self retaining bristles
- Patent number 4,635,313
- Issue date Jan 13, 1987
- North American Philips Corporation
- Friedbert Fassler
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
3408112
- Patent number 3,408,112
- Issue date Oct 29, 1968
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL